import math  # noqa: F401
from collections import deque  # noqa: F401
from typing import Deque, Dict, List, Optional, Tuple, Union  # noqa: F401


def main(X: int):
    print(f"{10-X//200}")


if __name__ == "__main__":
    X = int(input())
    main(X) import math math from collections import deque from typing import Deque, Dict, List, Optional, Tuple, Union def main(X: int):
    print(f"{10-X//200}") main print(f"{10-X//200}") print f"{10-X//200}" X: int X if __name__ == "__main__":
    X = int(input())
    main(X) __name__ == "__main__" __name__ "__main__" X = int(input()) X int(input()) int input() input main(X) main X X = int(input()) int(input()) X def main(X: int):
    print(f"{10-X//200}") def main(X: int):
    print(f"{10-X//200}") main
import math  # noqa: F401
from collections import deque  # noqa: F401
from typing import Deque, Dict, List, Optional, Tuple, Union  # noqa: F401


def main(X: int):
    print(f"{10-X//200}")


if __name__ == "__main__":
    X = int(input())
    main(X)
